A sarcastic exclamation of joy. Said by Pete in "Shaun of the Dead". Interesting sidenote; the original line was "scooby-fucking-doo", but had to be changed for legal reasons.
An exclamation of surprise - first thought to have been used in the film 'Shaun Of The Dead' but was actually used 10 years before, in the film '4 Weddings And A Funeral' and is uttered by Hugh Grant.